Ebener Kohlesegmentkommutator

摘要

A planar carbon segment commutator has contact members 4, with terminals 31, attached to the front surface 2 of an insulating base member 1 by means of overmoulded carbon segments 5 formed integral with anchor pieces 6 disposed within apertures 3 in the base member 1. Each aperture 3 has a second part 8 disposed rearwardly of a first part 7 having a smaller cross-section than the second part 8 and the anchor piece 6 disposed within the aperture 3 has a locking portion 10 which fills the second part 8 of the aperture 3 to thereby resist withdrawal of the anchor piece 6 from the aperture 3. The contact members 4 are embedded in the carbon segments 5 and have holes 22 filled with carbon segment material to increase interlocking between the contact members 4 and the segments 5.